log4j2 mybatis 显示 sql 和 结果集

首先说明版本:
java

log4j 版本是 第2版beta9,引用jar包web

log4j-api-2.0-beta9.jar log4j-core-2.0-beta9.jarspring


mybatis 是 mybatis-3.2.3sql


log4j2 配置 以下,命名为 log4j2.xml(log4j2只能用xml或者json,其余命名格式在此不在介绍)将其放在classpath下,内容以下:json

<?xml version="1.0" encoding="UTF-8"?> 
<configuration status="OFF"> 
  <appenders> 
    <Console name="Console" target="SYSTEM_OUT"> 
      <PatternLayout pattern="%d{HH:mm:ss.SSS} [%t] %-5level %logger{36} - %msg%n"/> 
    </Console> 
  </appenders> 
  <loggers> 
    <logger name="log4j.logger.noModule" level="fatal" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.org.mybatis.jpetstore" level="trace" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.com.opensymphony.xwork2" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.com.ibatis" level="trace" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.com.ibatis.common.jdbc.SimpleDataSource" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.com.ibatis.common.jdbc.ScriptRunner" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.org.mybatis" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.java.sql" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.java.sql.Connection" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.java.sql.Statement" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.java.sql.PreparedStatement" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <logger name="log4j.logger.java.sql.ResultSet" level="debug" additivity="false">
      <appender-ref ref="Console"/> 
    </logger>
    <root level="trace"> 
      <appender-ref ref="Console"/> 
    </root> 
  </loggers> 
</configuration>


光有这个配置是不行滴,由于mybatis加载日志组件是有顺序的,他会按 api

  • SLF4Jmybatis

  • Apache Commons Loggingapp

  • Log4j 2框架

  • Log4jide

  • JDK logging

的顺序查找。因此,若是在web应用中用了spring之类的框架,他会包含commons-log包,根据优先级,他就不会去用log4j了,因此还得在mybatis配置文件中配置一条语句,以下

<settings>
     <setting name="logImpl" value="LOG4J2"/>
</settings>

而后就能够了

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